Design of photonic rearrangeable networks with zero first-order switching-element-crosstalk

Author

Maier, Guido ; Pattavina, Achille

Author_Institution

CoreCom, Milan, Italy

Volume

49

Issue

7

fYear

2001

fDate

7/1/2001 12:00:00 AM

Firstpage

1268

Lastpage

1279

Abstract

The development of optical cross-connect architectures is a very important topic today. We consider here in particular the class of optical space-division switching fabrics configured as multistage structures built with 2×2 optical switching elements (SEs) and derived from a combination of vertical replication and horizontal expansion of Banyan networks. We determine the necessary and sufficient conditions for these matrices to be rearrangeably nonblocking and free of first-order crosstalk in SEs. This impairment is one of the major limitations in optical cross-connect performance. We focus on rearrangeable matrices since they have lower complexity than their strict-sense nonblocking counterparts. Given the current high cost of optical SEs, the rearrangeable solution looks attractive today

Keywords

matrix algebra; multistage interconnection networks; optical crosstalk; photonic switching systems; 2×2 optical switching elements; Banyan networks; complexity; horizontal expansion; multistage structures; optical cross-connect architectures; optical space-division switching fabrics; photonic rearrangeable networks; rearrangeable matrices; vertical replication; zero first-order switching-element-crosstalk; Circuits; Control systems; Fabrics; Optical crosstalk; Optical fiber communication; Optical fiber networks; Optical packet switching; Optical switches; Telecommunication switching; Wavelength division multiplexing;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.935167

Filename

935167